Acquisitions - Business Combination Transfer Purchase Price Consideration (Details) - USD ($) $ in Millions	1 Months Ended			12 Months Ended
	Feb. 28, 2019	Oct. 31, 2018	Mar. 31, 2018	Dec. 29, 2018	Jun. 29, 2019	Mar. 23, 2018
Mountain Valley Acquisition
Business Acquisition [Line Items]
Cash paid to sellers				$ 62.5
Cash paid on behalf of sellers for sellers’ transaction expenses				1.8
Cash paid to retire outstanding debt on behalf of sellers				$ 16.1
Working capital settlement	$ (0.4)
Total consideration	$ 80.0	$ 80.4
Crystal Rock Acquisition
Business Acquisition [Line Items]
Cash paid to sellers			$ 20.7
Cash paid on behalf of sellers for sellers’ transaction expenses			0.8
Total consideration			37.7
Total consideration			$ 21.5		$ 21.5	$ 21.5